JPS63190591U - - Google Patents
Info
- Publication number
- JPS63190591U JPS63190591U JP8173387U JP8173387U JPS63190591U JP S63190591 U JPS63190591 U JP S63190591U JP 8173387 U JP8173387 U JP 8173387U JP 8173387 U JP8173387 U JP 8173387U JP S63190591 U JPS63190591 U JP S63190591U
- Authority
- JP
- Japan
- Prior art keywords
- positive pressure
- exhaust passage
- pump
- diaphragm
- vacuum pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 230000037452 priming Effects 0.000 claims description 5
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Reciprocating Pumps (AREA)
Description
第１図は本考案の呼水装置の一実施例を示す一
部断面正面図、第２図は従来の呼水装置を示す一
部断面正面図である。
ａ……呼水装置、ｂ……給水ポンプ、ｃ……給
水ポンプのポンプ室、２……排気通路、３……ダ
イヤフラム式止水弁、３Ｇ……止水弁の弁体、３
Ｊ……ダイヤフラム、３Ｌ……止水弁の正圧圧力
室、４……逆止弁、５……真空ポンプ、５Ａ……
真空ポンプのポンプ室、５Ｄ……真空ポンプのポ
ンプ室の正圧側部分、９……止水弁駆動用正圧通
路。
FIG. 1 is a partially sectional front view showing an embodiment of the priming device of the present invention, and FIG. 2 is a partially sectional front view showing a conventional priming device. a... Priming device, b... Water pump, c... Pump chamber of water pump, 2... Exhaust passage, 3... Diaphragm water stop valve, 3G... Valve body of water stop valve, 3
J...Diaphragm, 3L...Positive pressure chamber of water stop valve, 4...Check valve, 5...Vacuum pump, 5A...
Pump chamber of the vacuum pump, 5D...Positive pressure side portion of the pump chamber of the vacuum pump, 9...Positive pressure passage for driving the water stop valve.
Claims (1)
通路を有し、該排気通路の他端には真空ポンプが
接続され、前記排気通路には呼水が吸上げられた
時に該呼水により弁体が押上げられて前記排気通
路を閉じるダイヤフラム式止水弁と前記真空ポン
プが停止した時に前記排気通路を閉じる逆止弁と
が配設されている給水ポンプの呼水装置において
、前記ダイヤフラム式止水弁は、前記排気通路か
ら独立して形成されている正圧圧力室と、前記正
圧圧力室に一端が接続されて他端が前記真空ポン
プのポンプ室の正圧側部分に接続されて前記正圧
圧力室を加圧するための止水弁駆動用正圧通路と
、前記正圧圧力室の圧力変化で作動するダイヤフ
ラムと、前記ダイヤフラムの作動により前記排気
通路の開閉動作をする弁体とを備えていることを
特徴とする給水ポンプの呼水装置。 The exhaust passage has one end connected to the pump chamber of the water supply pump, and the other end of the exhaust passage is connected to a vacuum pump. In a priming device for a water supply pump, the diaphragm water stop valve is provided with a diaphragm water stop valve that closes the exhaust passage when the vacuum pump is pushed up, and a check valve that closes the exhaust passage when the vacuum pump stops. The water valve includes a positive pressure chamber formed independently from the exhaust passage, and one end connected to the positive pressure chamber and the other end connected to the positive pressure side portion of the pump chamber of the vacuum pump. A positive pressure passage for driving a water stop valve for pressurizing a positive pressure chamber, a diaphragm that is operated by a pressure change in the positive pressure chamber, and a valve body that opens and closes the exhaust passage by operation of the diaphragm. A priming device for a water supply pump, characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987081733U JPH064072Y2 (en) | 1987-05-28 | 1987-05-28 | Water pump priming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987081733U JPH064072Y2 (en) | 1987-05-28 | 1987-05-28 | Water pump priming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63190591U true JPS63190591U (en) | 1988-12-08 |
| JPH064072Y2 JPH064072Y2 (en) | 1994-02-02 |
Family
ID=30933735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987081733U Expired - Lifetime JPH064072Y2 (en) | 1987-05-28 | 1987-05-28 | Water pump priming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH064072Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5949791U (en) * | 1982-09-25 | 1984-04-02 | ト−ハツ株式会社 | Fire pump priming device |
-
1987
- 1987-05-28 JP JP1987081733U patent/JPH064072Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5949791U (en) * | 1982-09-25 | 1984-04-02 | ト−ハツ株式会社 | Fire pump priming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH064072Y2 (en) | 1994-02-02 |